Results 11 to 20 of about 1,673 (99)

A Qualitative Comparison of the Reactivities of 3,4,4,5-Tetrachloro-4H-1,2,6-thiadiazine and 4,5-Dichloro-1,2,3-dithiazolium Chloride [PDF]

Molecules, 2015
The high yielding transformations of 3,4,4,5-tetrachloro-4H-1,2,6-thiadiazine into 3,5-dichloro-4H-1,2,6-thiadiazin-4-one (up to 85%) and 2-(3,5-dichloro-4H-1,2,6-thiadiazin-4-ylidene)malononitrile (up to 83%) have been investigated and compared to the ...
Andreas S. Kalogirou, Panayiotis A. Koutentis   +1 more
doaj   +3 more sources

Mechanochemically-Assisted Passerini Reactions: A Practical and Convenient Method for the Synthesis of Novel α-Acyloxycarboxamide Derivatives. [PDF]

ChemistryOpen, 2023
The formation of novel α‐acyloxycarboxamides from a carboxylic acid/phenol, an aldehyde/ketone and substituted isocyanide was investigated under mechanochemical conditions in the absence of organic solvents or in the presence of a catalytic amount of H2SO4−SiO2 (solid‐assisted grinding, SAG) to create libraries of structurally complicated molecules for
Salami SA, Safari JB, Smith VJ, Smith VJ, Krause RWM.   +4 more
europepmc   +2 more sources

Mechanochemistry: New Tools to Navigate the Uncharted Territory of "Impossible" Reactions. [PDF]

ChemSusChem, 2022
Mission impossible: Mechanosynthesis is erroneously perceived as an enabling tool for only making greener well‐known solution‐based processes. Modern mechanochemistry is, above all, an effective tool to open synthetic paths not accessible by following conventional and well‐known pathways already reported in the literature for the classical chemistry in
Cuccu F, De Luca L, Delogu F, Colacino E, Solin N, Mocci R, Porcheddu A.   +6 more
europepmc   +2 more sources

6,10-Dichloro-1-oxa-4,8-dithia-7,9-diazaspiro[4.5]deca-6,9-diene

Molbank, 2022
Reaction of 3,4,4,5-tetrachloro-4H-1,2,6-thiadiazine with 2-mercaptoethan-1-ol (1 equiv.) gave 6,10-dichloro-1-oxa-4,8-dithia-7,9-diazaspiro[4.5]deca-6,9-diene in 12% yield. The compound was fully characterized.
Andreas S. Kalogirou, Panayiotis A. Koutentis   +1 more
doaj   +2 more sources

Reactions of 4H-1,2,6-Thiadiazine Sulfides

Molbank, 2022
3,5-Dichloro-4H-1,2,6-thiadiazin-4-one reacts with benzo[d]thiazole-2-thiol (1 equiv) and triethylamine (1 equiv) to give 3-(benzo[d]thiazol-2-ylthio)-5-chloro-4H-1,2,6-thiadiazin-4-one in 71% yield.
Andreas S. Kalogirou, Panayiotis A. Koutentis   +1 more
doaj   +2 more sources

5,5′-Bis[5-(9-decyl-9H-carbazol-3-yl)thien-2-yl]-4H,4′H-[3,3′-bi(1,2,6-thiadiazine)]-4,4′-dione

Molbank, 2018
Stille coupling of 5,5′-dichloro-4H,4′H-[3,3′-bi(1,2,6-thiadiazine)]-4,4′-dione (8) with 9-decyl-3-[5-(tributylstannyl)thien-2-yl]-9H-carbazole and Pd(Ph3P)2Cl2 in PhMe, at ca. 110 °C, for 2 h, gave 5,5′-bis[5-(9-decyl-9H-carbazol-3-yl)thien-2-yl]-4H,4′H-
Andreas S. Kalogirou, Panayiotis A. Koutentis   +1 more
doaj   +2 more sources

Scientific Opinion of Flavouring Group Evaluation 406 (FGE.406): (<i>S</i>)-1-(3-(((4-amino-2,2-dioxido-1<i>H</i>-benzo[c][1,2,6]thiadiazin-5-yl)oxy)methyl)piperidin-1-yl)-3-methylbutan-1-one. [PDF]

EFSA J, 2018
Abstract The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF) of EFSA was requested to deliver a scientific opinion on the safety of the use of the substance (S)‐1‐(3‐(((4‐amino‐2,2‐dioxido‐1H‐benzo[c][1,2,6]thiadiazin‐5‐yl)oxy)methyl)piperidin‐1‐yl)‐3‐methylbutan‐1‐one [FL‐no: 16.129], as a flavouring substance.
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF), Silano V, Bolognesi C, Castle L, Chipman K, Cravedi JP, Engel KH, Fowler P, Franz R, Grob K, Gürtler R, Husøy T, Kärenlampi S, Milana MR, Pfaff K, Riviere G, Srinivasan J, Tavares Poças MF, Tlustos C, Wölfle D, Zorn H, Beckman Sundh U, Benigni R, Binderup ML, Brimer L, Marcon F, Marzin D, Mosesso P, Mulder G, Oskarsson A, Svendsen C, Van Benthem J, Anastassiadou M, Carfì M, Mennes W.   +36 more
europepmc   +2 more sources

5,5′-Thiobis(3-methoxy-4H-1,2,6-thiadiazin-4-one)

Molbank, 2019
The reaction of 3-chloro-5-methoxy-4H-1,2,6-thiadiazin-4-one (9) with Na2S·9H2O (0.5 equiv) in tetrahydrofuran (THF) at ca. 20 °C for 20 h gives 5,5′-thiobis(3-methoxy-4H-1,2,6-thiadiazin-4-one) (10) in a 44% yield as yellow needles.
Andreas S. Kalogirou, Panayiotis A. Koutentis   +1 more
doaj   +2 more sources

6-Amino-4-phenylpyrrolo[2,3-c][1,2,6]thiadiazine-5-carbonitrile

Molbank
The reaction of 2-(3-chloro-5-phenyl-4H-1,2,6-thiadiazin-4-ylidene)malononitrile with ammonia in anhydrous THF, at ca. 20 °C, for 24 h, gave 6-amino-4-phenylpyrrolo[2,3-c][1,2,6]thiadiazine-5-carbonitrile in 95% yield. The product was characterized by 1H
Andreas S. Kalogirou, Andreas Kourtellaris, Panayiotis A. Koutentis   +2 more
doaj   +2 more sources

3-Chloro-5-(3-n-hexylthien-2-yl)-4H-1,2,6-thiadiazin-4-one

Molbank, 2019
Stille coupling of 5-chloro-4-oxo-4H-1,2,6-thiadiazin-3-yl trifluoromethanesulfonate (7) with tributyl(3-n-hexylthien-2-yl)stannane and Pd(Ph3P)2Cl2 in PhMe at ca. 20 °C, for 24 h gave 3-chloro-5-(3-n-hexylthien-2-yl)-4H-1,2,6-thiadiazin-4-one (9) with a
Andreas S. Kalogirou, Panayiotis A. Koutentis   +1 more
doaj   +2 more sources